PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-85C TY II ST 10PScrew,cap,hexagon Head

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-281-9340 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-281-9340 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-281-9340. Primary manufacturer part number: FF-S-85C TY II ST 10P.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.625 INCHES IN
  • Material: STEEL OVERALL
  • Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL
  • Minimum Yield Strength: 52000 POUNDS PER SQUARE INCH LBS
  • Material Document and Classification: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-281-9340, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-281-9340
Primary Part NumberFF-S-85C TY II ST 10P
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.625 INCHES IN
MaterialSTEEL OVERALL
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
Minimum Yield Strength52000 POUNDS PER SQUARE INCH LBS
Material Document and ClassificationSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10 STYLE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Width Between Flats0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
Thread Quantity Per Inch11
Head StyleHEXAGON
Fastener Length5.000 INCHES NOMINAL IN
Head Height0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
Thread Length4.775 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
Minimum Tensile Strength64000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5305-00-018-1703 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-022-4057 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-145-6379 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-207-2095 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-297-0724595540 INTERCHANGEABLE
Screw,cap,hexagon Head
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
FF-S-85C TY II ST 10P Federal Specifications Promulgated by General Services Administration Washington DC (USA)
11-0B03-0009 Korfund Dynamics Corp (USA)
Related Parts
5305-00-018-1703INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-022-4057INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-145-6379INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-207-2095INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-297-0724INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
595540

Frequently Asked Questions

What is NSN 5305-00-281-9340?

NSN 5305-00-281-9340 is a Screw,cap,hexagon Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-281-9340?

NSN 5305-00-281-9340 has 2 cross-referenced part numbers: FF-S-85C TY II ST 10P (Federal Specifications Promulgated by General Services Administration Washington DC), 11-0B03-0009 (Korfund Dynamics Corp).

What NSN replaces 5305-00-281-9340?

There are 5 known substitutes for 5305-00-281-9340: 5305-00-018-1703, 5305-00-022-4057, 5305-00-145-6379 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-S-85C TY II ST 10P?

Key specifications for FF-S-85C TY II ST 10P: Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Diameter: 0.625 INCHES IN; Material: STEEL OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-281-9340 still in active supply?

NSN 5305-00-281-9340 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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